Aethertide Whale (AER) from Aether Revolt, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Steven Belledin
• Card Text:
  Flying
  Whenever Aethertide Whale enters the battlefield, you get EEEEEE (six energy counters).
  Pay EEEE: Return Aethertide Whale to its owner's hand.